Patents Represented by Attorney John E. Holford

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  • Lead-tin-telluride photodetector array
    Patent number: 4048535
    Abstract: A method is provided for manufacturing lead-tin-telluride photodiode arrays which is simple and yet provides excellent yields of high performance devices.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: September 13, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John T. Cox, Michael B. Garber, Marilyn A. Jasper, Paul LoVecchio
  • Electronic motion compensation for the pyroelectric vidicon
    Patent number: 4040087
    Abstract: An image motion correction is provided for a pyroelectric vidicon which pides a standard television video output signal.
    Type: Grant
    Filed: March 2, 1976
    Date of Patent: August 2, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John T. Hall
  • Standby illuminator for remote controlled viewer
    Patent number: 4027334
    Abstract: A simple inexpensive circuit is provided for an active remote surveillance ystem which provides illumination only when required and causes a minimal drain on the remote power source.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: May 31, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Wayne T. Grant
  • Method for making ultra high resolution phosphor screens
    Patent number: 4025662
    Abstract: An ultra high resolution screen is provided by spraying small phosphor pacles onto a rotating disc-shaped substrate coated with a thermoplastic film heated to its softening point.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: May 24, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Barbara E. Sumner
  • Compensation circuit for pyroelectric vidicon system
    Patent number: 4021847
    Abstract: A correction circuit for a pyroelectric vidicon system wherein the image is canned by an oscillating or rotating mirror is provided which operates only on the synchronization and blanking pulses so as to remove image motion from the video signal.
    Type: Grant
    Filed: July 15, 1976
    Date of Patent: May 3, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Peter W. Van Atta
  • Remote infrared signal communicator
    Patent number: 4019180
    Abstract: An infrared viewer is provided which has a radio link to a remote monitoring station. Both on site and remote monitoring capabilities are provided at all times with minimum power requirements at the site, although the viewer may be intentionally located at inaccessible sites.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: April 19, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Howard T. Graves
  • Method of making photocathodes
    Patent number: 4000335
    Abstract: A method is provided for making photocathodes which uses a stainless steel igh-vacuum, or ultrahigh vacuum, manifold fitted with side-tubulations and appertenances, and having interior surfaces that are coated or plated with a noble metal or semi-noble metal layer, in order to assure most extreme cleanliness within the vacuum system.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: December 28, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Herbert A. Stahl
  • Image detector with background suppression
    Patent number: 3996599
    Abstract: A balanced metal-oxide-semiconductor detector is provided which senses only he difference in radiation level between elements of a radiation image. The same detector is provided in a silicon base structure modified to be responsive to band-gap energy at longer wavelengths than are normally associated with such structures.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: December 7, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Gerard J. King
  • Processes for activating S-1 cathode
    Patent number: 3992071
    Abstract: A method of forming an S-1 (silver-oxide-cesium) cathode is provided wher the tube preparation includes two bakeout periods punctuated by an oxygen flush and the cathode activation includes a special cathode current pulsation technique.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: November 16, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Frederick R. Hughes, Robert C. Crissman
  • Compatible vacuum seal
    Patent number: 3989285
    Abstract: A compound sealing gasket is provided for vacuum line connectors which ines a tight seal and reduced galvanic reactions when the connectors consist of dissimilar metals.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: November 2, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Gary K. Yancey
  • Quick disconnect for night vision optics
    Patent number: 3971933
    Abstract: The invention provides a quick disconnect device for use between image insifier tubes and their power supply or their supporting apparatus.
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: July 27, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: James R. Adamson, Jr.
  • Photon sensor and method of fabrication
    Patent number: 3952275
    Abstract: A photon sensitive film resistor is provided having a resistance measured megohms per centimeter. The method of fabrication insures that the resistance is uniformly distributed along the current path.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: April 20, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Reinhard D. Ennulat, Paul LoVecchio, Wolfgang Elser, Philip R. Boyd
  • Automatic focus pulse gated system
    Patent number: 3941999
    Abstract: An improved active type of infrared viewing system is provided using pulse ated techniques which displays the complete Z (range) axis simultaneously and provides uniform image intensity at all ranges.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: March 2, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Thomas E. Moyers, Jr.
  • Thermal imaging device
    Patent number: 3942008
    Abstract: A unique imaging device operating in the far infrared is provided by utilng fiber optic techniques. The system is used to improve the performance of photoconductive and thermoresistive type retinas.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: March 2, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Clifford F. Eve, Max Garbuny